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dnl #
dnl # 2.6.28 API change
dnl # Device, transport, and driver FAILFAST flags were added and
dnl # the now legacy BIO_RW_FAILFAST flag was removed.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_FAILFAST], [
AC_MSG_CHECKING([whether BIO_RW_FAILFAST_* are defined])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
int flags;
flags = ((1 << BIO_RW_FAILFAST_DEV) |
(1 << BIO_RW_FAILFAST_TRANSPORT) |
(1 << BIO_RW_FAILFAST_DRIVER));
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_RW_FAILFAST, 1,
[BIO_RW_FAILFAST_* are defined])
],[
AC_MSG_RESULT(no)
])
])
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